Horseshoe-calk.



3. H. TRUNDLE. HORSESHOE CALK.

APPLIUATION TILED JAN. 13,1913.

Patented Sept. 16, 1913.

EDWARD H. TRUNDLE, OF WASHINGTON, DISTRICT OF COLUMBIA.

HORSESI-IOE-CALK.

Specification of Letters Patent.

Application filed January 13, 1913.

Patented Sept. 16, 191.3.

Serial No. 741,840.

To all whom it may concern Be it known that I, Eowann H. Tuonnnn, a citizen of the United States, residing at WVashington, in the District of Columbia, have invented certain new and useful Improvements in Iilorseshoe-Calks, of which the following is a specification.

My invention relates to devices to be attached to horse shoes to prevent horses from slipping and falling on smooth or ice covered streets or roadways.

The object of my invention is to provide a removable horse shoe calk which can be easily attached to a shoe and can be adjusted to fit a shoe of any desired width or thickness.

Furthermore, the object of my invention is to provide a removable horse shoe calk of the clamp type, provided with means for preventing the calk from shifting or accidentally changing its position after being attached to the shoe.

Finally the object of my invention is to provide a removable calk adapted to be quickly attached or removed from a shoe, simple in construction and inexpensive of manufacture.

lVith the above and other objects in view, my invention consists in the details of construction, and in the arrangement and combination of parts to be hereinafter more fully set forth and particularly pointed out in the claims.

In describing my invention in detail, reference will be had to the accompanying drawing, fori'ning part of this specification, wherein like characters denote correspond ing parts in the several views, and in which Figure 1, is a perspective view showing my invention attached to a horse shoe. Fig. 2 is a side view in elevation showing the top clamping member and the groove for rig idly holding the clamping bolt. Fig. 3, is a view in elevation showing the outer end. Fig. 4 is a view in elevation showing the inner end. Fig. 5 is a horizontal sectional view showing the cutaway or concave portion upon one side and the teeth on the inner surface of the clamping members, and Fig. 6 is a modification showing a wedge shape extending to the upper surface of the clamping arm.

In the drawings 1 indicates the body portion of my improved calk which terminates in a sharp cutting edge 2 adapted to penetrate the ice or surface of a street or r0adway to prevent slipping. At the upper surface, extending the entire thickness of the body portion, .II form a projtmlion 3 which has a clamping member at formed integral therewith and bent at right angles thereto, extending toward the inner edge of the calk. The upper surface of the clamping member t is slightly beveled to facilitate the entrance of the same between the hoof and shoe. I form a seat 5 in the body portion of the calk which extends from the inner end surface toward its center and terminates in an abutting shoulder 6 extending to the upper surface of the calk. The body portion is provided with an aperture 7 extending through the same, and is countersunk at its outer end to permit the head of the clamping bolt 8 to seat therein so that a smooth outer surface is provided thereby removing any danger of injury to the horse. The countersunk portion has a groove 9 in which the lug 1.0 on the clamping bolt 8 seats, which prevents the bolt from accidentally turning when the nut is threaded on or when being removed.

The projection 3 has a hollow or concave portion 11 on its inner surface which permits the calk to fit closely on the shoe when attached upon opposite sides of the toe piece. The coi'icavc terminates in sharp edges 12-- 12 on each side of the projection 23 and as shown in Fig. 5 when the calk is attached on the heel of the shoe the outer edge surface of which comparatively straight, the sharp edges sink into the shoe and hold the calk rigidly in place.

I provide a clamping plate 13 having an enlarged body portion let which abuts against the shoulder 6 and is supported by the seat 5 of the body portion of the calk. A projection 15 having a beveled clamping arm 16 bent at right angles thereto is formed in tegral with the clamping plate.

I provide on the inner surface of the pro jection 15 a plurality of teeth 17 which engage the shoe and hold the plate from shifting its position after being attached on the shoe.

In attaching my improved calk on a horse shoe, the clamping arm 4 is inserted between the hoof and shoe on the outside and as shown in Fig. 2 the shoe seats on the upper surface of the calk. The clamping arm 16 is then inserted between the hoof and shoe on means of a bolt and at the same time 1 provide a s'olld seat for thershoe as the part 14- of the clamping plate rests on the seat 5 of the calk.

The construction and advantages, it is thought will be understood from'the foregoing description, it being notedthat various changes may be made in the proportions of construction, without departing from the scope of my invention. v

Having full described my invention what I claim as new and desire to secure by Letters Patent is I 1. A removable horse shoe call; comprising a body portion, a clamping member formed on said body portion, said clamping member having a concave portion terminating in cutting edges on its inner surface, said body portion being provided with an abutting shoulder and seat, a clamping late having a clamping member adapted to abut against said shoulder and seat and means for adjustaloly securing said clamping plate to the body portion as and for the purpose set forth. 2. A removable call: forhorse shoes, comprising a body portion provided with an aperture and having a projection bent to form a clamping arm, said body portion having a cutaway portion forming a' seat and abutting shoulder, said. projection provided with a concave on its inner surface terminatin in biting edges, a clamping plate provided with a clamping arm, said clamping arm having a plurality of teeth on its inner surface and means for adjustably securing the clamping plate to the body portion substantially as described. 7

In testimony whereof I afiix my signature in presence of two witnesses.

VEDVVARD H. TRUNDLE, lVitnesses J. D. YOAKLEY, E. G. CLEMENTS.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents.

Washington, D. C. i 

